Wake length and loading history effects on crack closure of through-thickness long and short cracks in 304L: Part II-3D numerical simulation

被引：35

作者：

Vor, Kokleang ^{[1
]}

Gardin, Catherine ^{[1
]}

Sarrazin-Baudoux, Christine ^{[1
]}

Petit, Jean ^{[1
]}

机构：

[1] Univ Poitiers, Inst Pprime, CNRS, ENSMA,UPR 3346, F-86961 Futuroscope, France

来源：

ENGINEERING FRACTURE MECHANICS | 2013年 / 99卷

关键词：

Short crack; Plasticity; Fatigue crack growth; Stress intensity factor; Steels; 3D finite element analysis; FINITE-ELEMENT-ANALYSIS; CYCLE FATIGUE BEHAVIOR; MESH REFINEMENT; PLASTICITY; STRESS; GROWTH; PROPAGATION; SHAPE; EVOLUTION; MODEL;

D O I：

10.1016/j.engfracmech.2013.01.014

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The plasticity-induced crack closure shielding effect for long and short through-thickness cracks is studied in a 304L steel. A main objective is to uncouple the effect of the wake length from that of the wake history. The experimental results are presented in a first part of this contribution. In the present second part, a 3D finite elements analysis (ABAQUS) for 2D cracks with a straight crack front is proposed. Globally, a remarkable consistence is obtained between simulation and experiments. The effective stress intensity factor range is confirmed as the driving force when the LEFM concepts are applicable. (C) 2013 Elsevier Ltd. All rights reserved.

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页码：306 / 323

页数：18